Liquid crystal display screen capable of improving conductive stability of backlight iron stand and vehicle-mounted display screen

Abstract

The utility model discloses a liquid crystal display screen and a vehicle-mounted display screen capable of improving the conductive stability of a backlight iron stand, the liquid crystal display screen capable of improving the conductive stability of the backlight iron stand comprises the backlight iron stand, a backlight module and a TFT module, the backlight module is arranged above the backlight iron stand, the TFT module is arranged above the backlight module, and the TFT module is arranged above the backlight module. An anti-oxidation conductive coating is arranged on the outer surface of the backlight iron stand, an FPC is led out of the TFT module, and the FPC is bent to the lower surface of the backlight iron stand and electrically connected with the backlight iron stand. As the anti-oxidation conductive coating is arranged on the outer surface of the backlight iron stand, the anti-oxidation conductive coating wraps the outer surface of the backlight iron stand to prevent the backlight iron stand from being oxidized and provides a conductive function for the backlight iron stand, so that the iron stand is prevented from being oxidized, the conductive performance of the iron stand is prevented from being reduced, and the stability of the anti-static performance of the module is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more particularly to a liquid crystal display screen and a vehicle-mounted display screen capable of improving the conductive stability of a backlight iron frame. Background Art

[0002] To improve the module's anti-static performance, the backside of the display's FPC is typically exposed to copper. Conductive adhesive is then applied to the exposed copper and bent to secure it to the backside of the module, grounding the display's FPC to the backlight's metal frame. Because the metal frame easily oxidizes in high-temperature or humid environments, the oxidized metal frame's conductivity decreases, weakening the module's anti-static performance and making it difficult to maintain stable anti-static performance. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to prevent the iron frame from being oxidized, thereby avoiding the reduction of the conductive performance of the iron frame and maintaining the stability of the anti-static performance of the module.

[0004] The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen that improves the conductive stability of the backlight iron frame, which includes a backlight iron frame, a backlight module and a TFT module. The backlight module is arranged above the backlight iron frame, and the TFT module is arranged above the backlight module. The outer surface of the backlight iron frame is provided with an anti-oxidation conductive coating, and the TFT module is led outward with an FPC, and the FPC is bent to the lower surface of the backlight iron frame and electrically connected to it.

[0006] As a preferred embodiment of the liquid crystal display screen with improved conductive stability of the backlight iron frame provided by the present invention, the conductive performance of the anti-oxidation conductive coating is close to that of the backlight iron frame.

[0007] As a preferred embodiment of the liquid crystal display screen with improved conductive stability of the backlight iron frame provided by the present invention, the anti-oxidation conductive coating is a nickel coating.

[0008] As a preferred embodiment of the liquid crystal display screen with improved conductive stability of the backlight iron frame provided by the present invention, the thickness of the anti-oxidation conductive coating is 1 μm-2 μm.

[0009] As a preferred embodiment of the liquid crystal display screen with improved conductive stability of the backlight iron frame provided by the present invention, the backlight iron frame includes a bottom plate and side walls extending upward from edges of the bottom plate.

[0010] As a preferred embodiment of the liquid crystal display screen with improved conductive stability of the backlight iron frame provided by the present invention, a conductive double-sided tape is provided on the surface of the FPC, and the FPC is adhered, fixed and electrically connected to the backlight iron frame through the conductive double-sided tape.

[0011] As a preferred embodiment of the liquid crystal display screen with improved conductive stability of the backlight iron frame provided by the present invention, the thickness of the conductive double-sided tape is 0.05 mm.

[0012] As a preferred embodiment of the liquid crystal display screen with improved conductive stability of the backlight iron frame provided by the present invention, a copper-exposed area is provided on the surface of the FPC, and the conductive double-sided adhesive is attached to the copper-exposed area.

[0013] The utility model also provides a vehicle-mounted display screen, which comprises a liquid crystal display screen with improved conductive stability of a backlight iron frame as described in any one of the above items.

[0014] As a preferred embodiment of the vehicle-mounted display screen provided by the present invention, a touch glass is provided above the TFT module, and a cover plate is provided above the touch glass.

[0015] The utility model has the following beneficial effects:

[0016] Since the outer surface of the backlight iron frame is provided with an anti-oxidation conductive coating, the anti-oxidation conductive coating wraps the outer surface of the backlight iron frame to prevent it from oxidation while providing it with a conductive function to prevent the iron frame from being oxidized, thereby avoiding the decline in the conductive performance of the iron frame and maintaining the stability of the anti-static performance of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the solutions in this application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 The utility model provides a structural schematic diagram of a liquid crystal display screen with improved conductive stability of a backlight iron frame.

[0019] Figure 2 for Figure 1 Magnified view of point A in .

[0020] Figure 3 for Figure 1 Bottom view of .

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the backlight iron frame.

[0022] Figure 5 for Figure 4 Magnified view of point B in FIG.

[0023] Description of Figure Numbers:

[0024] Backlight iron frame 1; backlight module 2; TFT module 3; anti-oxidation conductive coating 4; FPC 5. DETAILED DESCRIPTION

[0025] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first," "second," or "third" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0028] A liquid crystal display screen with improved conductive stability of a backlight frame comprises a backlight frame, a backlight module and a TFT module, wherein the backlight module is arranged above the backlight frame, the TFT module is arranged above the backlight module, an outer surface of the backlight frame is provided with an anti-oxidation conductive coating, an FPC is extended outward from the TFT module, and the FPC is bent to the lower surface of the backlight frame and electrically connected thereto.

[0029] Since the outer surface of the backlight iron frame is provided with an anti-oxidation conductive coating, the anti-oxidation conductive coating wraps the outer surface of the backlight iron frame to prevent it from oxidation while providing it with a conductive function to prevent the iron frame from being oxidized, thereby avoiding the decline in the conductive performance of the iron frame and maintaining the stability of the anti-static performance of the module.

[0030] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be understood as limiting the present invention.

[0031] Example 1, please refer to Figures 1 to 5 The present invention provides a liquid crystal display screen with improved conductive stability of a backlight frame. The liquid crystal display screen includes a backlight frame 1, a backlight module 2, and a TFT module 3. The backlight module 2 is disposed above the backlight frame 1, and the TFT module 3 is disposed above the backlight module 2. The outer surface of the backlight frame 1 is provided with an anti-oxidation conductive coating 4. An FPC 5 extends outward from the TFT module 3 and is bent to and electrically connected to the lower surface of the backlight frame 1. Because the outer surface of the backlight frame 1 is provided with the anti-oxidation conductive coating 4, the anti-oxidation conductive coating 4 wraps the outer surface of the backlight frame 1 to prevent oxidation and provides a conductive function to the frame, thereby preventing oxidation of the frame, thereby avoiding a decrease in the conductive performance of the frame and maintaining the stability of the module's anti-static performance.

[0032] Furthermore, the conductivity of the anti-oxidation conductive coating 4 is close to that of the backlight iron frame 1, so that its conductivity is good. In this embodiment, the anti-oxidation conductive coating 4 is a nickel plating layer. Since nickel metal has good oxidation resistance and the conductivity of iron and nickel is comparable, a layer of nickel is electroplated on the surface of the backlight iron frame 1. The thickness of the anti-oxidation conductive coating 4 is 1 μm-2 μm, that is, the thickness of the nickel plating is controlled at 1 μm-2 μm, so as to prevent the iron frame from oxidizing, thereby ensuring the stability of the anti-static performance of the module.

[0033] Furthermore, the backlight iron frame 1 includes a bottom plate and side walls, and the side walls are formed by extending upward from the edge of the bottom plate.

[0034] Example 2, please refer to Figures 1 to 5 As a further optimization scheme of Example 1, in this embodiment, a conductive double-sided tape is provided on the surface of FPC5, and FPC5 is fixed and electrically connected to the backlight iron frame 1 through the conductive double-sided tape. The thickness of the conductive double-sided tape is 0.05mm. A copper exposed area is provided on the surface of FPC5, and the conductive double-sided tape is pasted on the copper exposed area.

[0035] The present invention also provides a vehicle-mounted display screen, which includes a liquid crystal display screen with improved conductive stability of the backlight iron frame 1 as described in any of the above items, a touch glass is provided above the TFT module 3, and a cover plate is provided above the touch glass.

[0036] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. A liquid crystal display screen with improved conductive stability of a backlight iron frame, characterized in that: It includes a backlight iron frame, a backlight module and a TFT module. The backlight module is arranged above the backlight iron frame, the TFT module is arranged above the backlight module, the outer surface of the backlight iron frame is provided with an anti-oxidation conductive coating, the TFT module is led outward with an FPC, and the FPC is bent to the lower surface of the backlight iron frame and electrically connected to it.

2. The liquid crystal display screen with improved conductive stability of the backlight iron frame according to claim 1, characterized in that: The conductive property of the anti-oxidation conductive coating is close to that of the backlight iron frame.

3. The liquid crystal display screen with improved conductive stability of the backlight iron frame according to claim 1, characterized in that: The anti-oxidation conductive plating layer is a nickel plating layer.

4. The liquid crystal display screen with improved conductive stability of the backlight iron frame according to claim 1, characterized in that: The thickness of the anti-oxidation conductive coating is 1 μm-2 μm.

5. The liquid crystal display screen with improved conductive stability of the backlight iron frame according to claim 1, characterized in that: The backlight iron frame comprises a bottom plate and side walls extending upward from the edge of the bottom plate.

6. The liquid crystal display screen with improved conductive stability of the backlight iron frame according to claim 1, characterized in that: A conductive double-sided adhesive tape is provided on the surface of the FPC, and the FPC is fixed to the backlight iron frame through the conductive double-sided adhesive tape and electrically connected.

7. The liquid crystal display screen with improved conductive stability of the backlight iron frame according to claim 6, characterized in that: The thickness of the conductive double-sided tape is 0.05 mm.

8. The liquid crystal display screen with improved conductive stability of the backlight iron frame according to claim 6, characterized in that: A copper-exposed area is provided on the surface of the FPC, and the conductive double-sided tape is adhered to the copper-exposed area.

9. A vehicle-mounted display screen, characterized in that: The invention comprises a liquid crystal display screen with improved conductive stability of a backlight iron frame as claimed in any one of claims 1 to 8.

10. The vehicle-mounted display screen according to claim 9, characterized in that: A touch glass is arranged above the TFT module, and a cover plate is arranged above the touch glass.

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